I play on NA and use Fullscreen Window.

While farming, I notice that my cursor will randomly vanish from the screen. This only happens when trying to plant seeds, not when harvesting or breeding.

I can see the glow of where my cursor is hovering, but the cursor itself is not on the screen and does not allow me to select anything in the farming window. Exiting out of farming, the cursor comes back, but disappears again once I try to place seeds a second time. 

I have tried changing characters and servers, but neither works. The only thing that works to get my cursor back to plant is completely disconnecting from the game and reconnecting.

Lately this bug has been happening every 2-3 plots, so I have to reboot at least 3 times to finish farming all 10 of my plots.

That happened to me. What I think it is is lag. Like we grab a seed plant it then we grab the same seed before the game registers it as planted so the courser disappears. I make sure I don't say keep taking the 1st seed in the 1st row over and over and it hasn't happened since. I also never had to restart I think when it dissapears I hit enter or spacebar I forget and it fixes it. Or maybe esc outta the farm. I can'r remem. gl

I've had this happen to me once, and I can't remember how I fixed it. My guess is I went to character screen as that seems like something I'd do to try and resolve it. Super annoying. I'm thinking it happened from me trying to plant my crops too quickly. Once you get in the groove of hitting 1 and quickly placing the seed you feel like you can just super speed your way through all the plots xD And then the game is like "No. Slow down." Tsh.

Farming in general has always been pretty buggy for me. Half the time I interact with my crops the ingame time changes from day to night or night to day... I reported it years ago and it never did get resolved.

But yeah, just wanted to say I experienced this bug also.